@node-dlc/wire/__tests__/messages/ChannelUpdateMessage.spec.ts

Lightning Network Wire Protocol

// tslint:disable: no-unused-expression
import { Value } from '@node-dlc/bitcoin';
import { BitField, ShortChannelId } from '@node-dlc/common';
import { expect } from 'chai';

import { ChannelUpdateMessage } from '../../lib/messages/ChannelUpdateMessage';

describe('ChannelUpdateMessage', () => {
  let input: Buffer;

  beforeEach(() => {
    input = Buffer.from(
      '010260957fec5b79b49303c1abe01b188842512c91ff465bdde51e255416e63bb293124a8dfea82644ee554ef8bd13d6ffbd20b6e297a1eae3c46ba1b188fd1d86c543497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000013a8b300011300005ca907fa0100009000000000000003e8000003e8000000010000000005f5e100',
      'hex',
    );
  });

  describe('.deserialize', () => {
    it('should deserialize without error', () => {
      const result = ChannelUpdateMessage.deserialize(input);
      expect(result.type).to.equal(258);
      expect(result.chainHash).to.deep.equal(
        Buffer.from(
          '43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000',
          'hex',
        ),
      );
      expect(result.shortChannelId).to.deep.equal(
        new ShortChannelId(1288371, 275, 0),
      );
      expect(result.timestamp).to.equal(1554581498);
      expect(result.messageFlags.value).to.equal(BigInt(1));
      expect(result.channelFlags.value).to.equal(BigInt(0));
      expect(result.cltvExpiryDelta).to.equal(144);
      expect(Number(result.htlcMinimumMsat.msats)).to.equal(1000);
      expect(Number(result.htlcMaximumMsat.msats)).to.equal(100000000);
      expect(Number(result.feeBaseMsat.msats)).to.equal(1000);
      expect(Number(result.feeProportionalMillionths.microsats)).to.equal(1);
      expect(result.direction).to.equal(0);
      expect(result.disabled).to.be.false;
    });
  });

  describe('.serialize', () => {
    it('should serialize a message', () => {
      const instance = new ChannelUpdateMessage();
      instance.signature = Buffer.from("60957fec5b79b49303c1abe01b188842512c91ff465bdde51e255416e63bb293124a8dfea82644ee554ef8bd13d6ffbd20b6e297a1eae3c46ba1b188fd1d86c5", "hex"); // prettier-ignore
      instance.chainHash = Buffer.from("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000", "hex"); // prettier-ignore
      instance.shortChannelId = new ShortChannelId(1288371, 275, 0);
      instance.timestamp = 1554581498;
      instance.messageFlags = new BitField(BigInt(1));
      instance.channelFlags = new BitField(BigInt(0));
      instance.cltvExpiryDelta = 144;
      instance.htlcMinimumMsat = Value.fromMilliSats(1000);
      instance.htlcMaximumMsat = Value.fromMilliSats(100000000);
      instance.feeBaseMsat = Value.fromMilliSats(1000);
      instance.feeProportionalMillionths = Value.fromMicroSats(1);

      const result = instance.serialize();
      expect(result.toString('hex')).to.deep.equal(
        '010260957fec5b79b49303c1abe01b188842512c91ff465bdde51e255416e63bb293124a8dfea82644ee554ef8bd13d6ffbd20b6e297a1eae3c46ba1b188fd1d86c543497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000013a8b300011300005ca907fa0100009000000000000003e8000003e8000000010000000005f5e100',
      );
    });
  });

  describe('.validateSignature', () => {
    let input: Buffer;
    let nodeId: Buffer;
    beforeEach(() => {
      input = Buffer.from(
        '01024e6eac97124742ba6a033612c8009945c0d52568756a885692b4adbf202666503b56ecb6f5758ea450dda940b2a6853b8e1706c3bd4f38a347be91b08c5e5c4743497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000013a90900000300005cdd9d780002009000000000000003e8000003e800000001',
        'hex',
      );
      nodeId = Buffer.from(
        '036b96e4713c5f84dcb8030592e1bd42a2d9a43d91fa2e535b9bfd05f2c5def9b9',
        'hex',
      );
    });

    it('should return true on valid signature', () => {
      const instance = ChannelUpdateMessage.deserialize(input);
      const result = ChannelUpdateMessage.validateSignature(instance, nodeId);
      expect(result).to.be.true;
    });
  });
});